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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[vol. 11 



Fig. 1. Acromastigum anisostomum. la. Leafy stem, ventral view, X40; A, flagelliform 

 branch of the Acromastigum type; AL, half-underleaf with this branch. 1 b. c. Leaves, X 50. 

 1 d. Leaf cell, X 350. 1 e. Transverse section of a leafy branch showing the seven cortical 

 cells, X 225. 1 f. Female bract of the innermost series, X 40. 1 g. Transverse section of the 



